[Trans-esophageal echocardiography in non-cardiac surgery: report of four illustrating cases].

Transesophageal echocardiography can assess ventricular filling ana contraction ana detect motility disturbances secondary to ischemia. In non-cardiac surgery it can be extremely helpful to monitor complex patients. We report a 69-year-old mole subjected to a hepatic lobectomy, a 59-year-old mole with hepatorenal syndrome, a 52-year-old female subjected to a gastric bypass, and a 54-year-old mole subjected to a thyroidectomy. In these four cases, left ventricular motility and preload were evaluated with transesophageal echocardiography, and it was of great aid in decision-making during anesthesia.